Abstract
Objective To investigate the epidemiological features and analyze the trends of Smith fractures from 2003 through 2012 at our hospital. Methods The data of human fractures treated between January 2003 to December 2012 at our hospital were collected through the PACS system and case reports checking system. Smith fractures were selected and divided into 2 groups, with the data between 2003 and 2007 in group A and the data between 2008 and 2012 in group B. Comparisons between the 2 groups were conducted to analyze their gender and age distributions. Results A total of 646 Smith fractures were selected, accounting for 5.62% (646/11, 496) of the fractures of distal ulna and radius and 0.51% (646/126, 479) of human fractures. There are 348 males (53.87%) and 298 females (46.13%), with a male to female ratio of 1.17: 1. The peak age of Smith fracture was from 11 to 20 years old (35.14%, 227/646) and the dominant fracture type by Thomas classification was type I (78.33%, 506/646). There were respectively 280 cases and 366 cases of Smith fracture in group A and group B, accounting for 4.74% (280/5, 905) and 6.55% (366/5, 591) of the distal ulnar and radial fractures, and 0.43% (280/65, 267) and 0.60% (366/61, 212) of the human fractures. There were significant differences between the 2 groups in the above indexes (P < 0.05). The male to female ratios in group A and group B were 1.22: 1 and 1.13: 1, showing no significant between-group difference ( P< 0.05). The proportion of type I in group A (85.71%, 240/280) was significantly higher than that in group B (72.68%, 266/366) (P <0.05). Conclusions Smith fractures accounted for 5.62% of the distal ulnar and radial fractures and 0.51% of human fractures. The injury affected more men than women. Their peak age was from 11 to 20 years old and type I was dominant. Compared with the first 5 years, the second 5 years witnessed no change in gender distribution but a significant decrease in proportion of type I fracture. Key words: Epidemiologic studies; Age distribution; Gender distribution; Smith fracture
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